Catamarca, Argentina climate

BSh Hot semi-arid

Catamarca has a seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is January with an average daily high near 35°C, while the coldest is July averaging around 5°C at night. Precipitation totals about 411 mm a year and is strongly seasonal — January alone averages 81 mm while August barely receives 3 mm.

☀️ Summers

Hot

Highs near 35°C in January.

❄️ Winters

Cool

Lows near 5°C in July.

🌧️ Rain

Fairly dry

About 411 mm of rain a year.

Wettest in January

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Catamarca climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	35	33	31	28	23	20	20	24	28	31	33	35
Avg temp (°C)	28	26	25	21	16	12	12	16	20	24	26	28
Avg low (°C)	22	21	19	15	10	6	5	8	12	17	20	21
Precipitation (mm)	81	74	50	31	13	7	4	3	6	24	45	73

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	35	33	31	28	23	20
Avg temp (°C)	28	26	25	21	16	12
Avg low (°C)	22	21	19	15	10	6
Precipitation (mm)	81	74	50	31	13	7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	20	24	28	31	33	35
Avg temp (°C)	12	16	20	24	26	28
Avg low (°C)	5	8	12	17	20	21
Precipitation (mm)	4	3	6	24	45	73

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	59	59	58	57	55	49	43	38	43	52	53	56
Relative humidity (%)	59	64	67	69	68	63	56	48	44	48	51	55
Wind speed (m/s)	2.3	2.2	2.1	1.9	1.7	1.6	1.8	2.1	2.5	2.7	2.7	2.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	59	59	58	57	55	49
Relative humidity (%)	59	64	67	69	68	63
Wind speed (m/s)	2.3	2.2	2.1	1.9	1.7	1.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	43	38	43	52	53	56
Relative humidity (%)	56	48	44	48	51	55
Wind speed (m/s)	1.8	2.1	2.5	2.7	2.7	2.5

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Catamarca_aero, about 14 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →